New Gamepad (Grifta - Morphing Gamepad) your thoughts?

kickstarter.com/projects/1384390939/grifta-morphing-gamepad?ref=category
It looks pretty cool. It looks like what the steam gamepad should have been, modular to suit the different game styles.
But then again until i use one there's no way to know how it feels. just thought it would be a cool share.

I am having trouble to come up with a situation where i would use this combined with a mouse. Maybe i could if i tried it but for now, the few occasions where i need/use a controller a PS/Xbox controller never left me thinking I needed something different.